I love her. (Day 3 or 4, forgot to check; Blind First Play)
I've been playing video games at least twice daily, and also showering and crafting, and I STILL have only been able to recruit one party member (Hellen). Yet, I resolved to save Jeanne without killing the central body, anyway.
With strategic use of Hellen's cleaver to use special ability "Cleave," a Fingernail Bomb from the Cassette Guy, and Hellen's Massacre, I finally stomped through the mob.
I give Jeanne the laundry basket the next day and she has a laughing fit.
I wasn't expecting myself to feel too attached to Jeanne when I first saw her in her trenchcoat sprite. But her personality really sticks to me. A shame that she likely won't be able to join my party. But it's worth it just to see her... many-toothed, many-eyed smile.